Digital Commons Network^™

Elicited Imitation For Prediction Of Opi Test Scores, Deryle W. Lonsdale, Kevin Michael Brooks Cook, Jeremiah Lane Mcghee

Faculty Publications

Automated testing of spoken language is the subject of much current research. Elicited Imitation (EI), or sentence repetition, is well suited for automated scoring, but does not directly test a broad range of speech communication skills. An Oral Proficiency Interview (OPI) tests a broad range of skills, but is not as well suited for automated scoring. Some have suggested that EI can be used as a predictor of more general speech communication abilities. We examine EI for this purpose. A fully automated EI test is used to predict OPI scores. Experiments show strong correlation between predicted and actual OPI scores. …

Film Cooling Effectiveness And Heat Transfer Near Deposit-Laden Film Holes, Scott Lewis, Brett Barker, Jeffrey P. Bons, Weiguo Ai, Thomas H. Fletcher

Faculty Publications

Experiments were conducted to determine the impact of synfuel deposits on film cooling effectiveness and heat transfer. Scaled up models were made of synfuel deposits formed on film-cooled turbine blade coupons exposed to accelerated deposition. Three distinct deposition patterns were modeled: a large deposition pattern (maximum deposit peak = 2 hole diameters) located exclusively upstream of the holes, a large deposition pattern (maximum deposit peak = 1.25 hole diameters) extending downstream between the cooling holes, and a small deposition pattern (maximum deposit peak = 0.75 hole diameter) also extending downstream between the cooling holes. The models featured cylindrical holes inclined …

Investigation Of An Iron-Based Additive On Coal Pyrolysis And Char Oxidation At High Heating Rates, John M. Sowa, Thomas H. Fletcher

Faculty Publications

Iron-based catalysts have been shown to enhance coal pyrolysis and char oxidation at low to moderate temperatures and heating rates (b1250 K and 1–1000 K/s). Such catalytic activity has not been demonstrated at high heating rates and temperatures approaching pulverized coal combustion applications. The effect of an iron-based additive on coal pyrolysis and char combustion was studied in a flat-flame burner system at high particle heating rates using a Kentucky bituminous coal. Pyrolysis and char reactivity of two treated coals with different catalyst loadings were studied and compared with the untreated coal. The total volatiles yield for the treated coals …

The Effects Of Wind On The Flame Characteristics Of Individual Leaves, Wesley J. Cole, Mckaye H. Dennis, Thomas H. Fletcher, David R. Weise

Faculty Publications

Individual cuttings from five shrub species were burned over a flat-flame burner under wind conditions of 0.75–2.80m s^-1. Both live and dead cuttings were used. These included single leaves from broadleaf species as well as 3 to 5 cm-long branches from coniferous and small broadleaf species. Flame angles and flame lengths were determined by semi-automated measurements of video images. Additional data, such as times and temperatures corresponding to ignition, maximum flame height and burnout were determined using video and infrared images. Flame angles correlated linearly with wind velocity. They also correlated with the Froude number when either the …

Social Support And The Reactivity Hypothesis: Conceptual Issues In Examining The Efficacy Of Received Support During Acute Psychological Stress, Wendy C. Birmingham, Bert N. Uchino, Mckenzie Carlisle, Allison A. Vaughn

Faculty Publications

Social support has been reliably related to better physical health outcomes. One influential model suggests that social support is related to lower cardiovascular disease mortality because it reduces the potentially deleterious consequences of cardiovascular reactivity during acute stress. However, received support and perceived support are separable constructs and epidemiological research suggests variability in links between received support and health. This is important because most social support and acute laboratory stress studies are essentially based on the receipt of support. In this paper, we focus on the conceptualization of received support and its implications for understanding links to support laboratory reactivity …

Intraclass Correlation Associated With Therapists: Estimates And Applications In Planning Psychotherapy Research, Scott A. Baldwin, David M. Murray, William R. Shadish, Sherri L. Pals, Jason M. Holland, Jonathan S. Abramowitz, Gerhard Andersson, David C. Atkins, Per Carlbring, Kathleen M. Carroll, Andrew Christensen, Kari M. Eddington, Anke Elhers, Daniel J. Feaster, Ger P. J. Keijsers, Ellen Koch, Willem Kuyken, Alfred Lange, Tania Lincoln, Robert S. Stephens, Steven Taylor, Chris Trepka, Jeanne Watson

Faculty Publications

It is essential that outcome research permit clear conclusions to be drawn about the efficacy of interventions. The common practice of nesting therapists within conditions can pose important methodological challenges that affect interpretation, particularly if the study is not powered to account for the nested design. An obstacle to the optimal design of these studies is lack of data about the intraclass correlation coefficient (ICC), which measures the statistical dependencies introduced by nesting. To begin the development of a public database of ICC estimates, the authors report ICCs for a variety outcomes reported in 20 psychotherapy outcome studies. The magnitude …

A Primer On Meta-Analysis In Clinical Psychology, Scott A. Baldwin, William R. Shadish

Faculty Publications

The authors provide a primer on meta-analysis. Topics are covered at an introductory level and references are provided for readers wanting further information. Topics covered include literature search procedures, coding manuals and extracting information from studies, calculating effect sizes, combining effect sizes, fixed and random effects analysis, influence analysis, moderator analysis, multivariate meta-analysis, and publication bias. All analyses are illustrated using k= 18 behavioral marital therapy versus control studies. The authors conclude by considering criticisms of meta-analysis, introducing reporting standards in meta-analysis, and reviewing software options for meta-analysis. An appendix for the paper includes the data and annotated Stata code …

Evaluation Of 1:5 Soil To Water Extract Electrical Conductivity Methods And Comparison To Electrical Conductivity Of Saturated Paste Extract, Yangbo He

Soil Science

Conducting a 1 :5 soil:water extract to measure electrical conductivity (EC) is an approach to assess salinity and is the preferred method used in Australia. However, the influence of salinity on plant growth is predominantly based on saturated paste extract electrical conductivity (ECe) and ECe is recommended as a general method for estimating soil salinity internationally, so it is necessary to convert EC1:s to ECe, The objectives of this research were to 1) compare methods of agitation (shaking plus centrifuging (shaking/centrifuging), shaking, and stirring) for determining EC1: 5; 2) determine optimal times for equilibration for each method across a range …

Necessity Of Hippocampal Neurogenesis For The Therapeutic Action Of Antidepressants In Adult Nonhuman Primates, Tarique D. Perera, Andrew J. Dwork, Kathryn A. Keegan, Lakshmi Thirumangalakudi, Cecilia M. Lipira, Niamh Joyce, Christopher Lange, James Dee Higley, Gorazd Rosoklija, Rene Hen, Harold A. Sackeim, Jeremy D. Coplan

Faculty Publications

Background: Rodent studies show that neurogenesis is necessary for mediating the salutary effects of antidepressants. Nonhuman primate (NHP) studies may bridge important rodent findings to the clinical realm since NHP-depression shares significant homology with human depression and kinetics of primate neurogenesis differ from those in rodents. After demonstrating that antidepressants can stimulate neurogenesis in NHPs, our present study examines whether neurogenesis is required for antidepressant efficacy in NHPs. Materials/Methodology: Adult female bonnets were randomized to three social pens (N = 6 each). Pen-1 subjects were exposed to control-conditions for 15 weeks with half receiving the antidepressant fluoxetine and the rest …

Entrepreneurship.Gov, Leticia Camacho

Faculty Publications

Below these tabs, the page is divided into three columns. The right column includes Events and Entrepreneurship Law. The left column, titled Quick Access, contains links to resources on subjects such as finance, accounting, employment, sales, marketing, products and services, and operations. This column includes a section called The Entrepreneur, where experienced business owners share tips, tactics, and stories about entrepreneurship.

Mass Spectrum Analysis Of A Substance Sample Placed Into Liquid Solution, Yunli Wang

Statistics

Mass spectrometry is an analytical technique commonly used for determining elemental composition in a substance sample. For this purpose, the sample is placed into some liquid solution called liquid matrix. Unfortunately, the spectrum of the sample is not observable separate from that of the solution. Thus, it is desired to distinguish the sample spectrum. The analysis is usually based on the comparison of the mixed spectrum with the one of the sole solution. Introducing the missing information about the origin of observed spectrum peaks, the author obtains a classic set up for the Expectation-Maximization (EM) algorithm. The author proposed a …

Individual Accounting Faculty Research Rankings By Topical Area And Methodology, Jeffrey Pickerd, Nathaniel M. Stephens, Scott L. Summers, David A. Wood

Faculty Publications

This paper ranks individual accounting researchers based on their research productivity in the most recent 6, 12, and 20 years. We extend prior individual faculty rankings by providing separate individual faculty research rankings for each topical area commonly published in accounting journals (AIS, audit, financial, managerial, and tax). In addition, we provide individual faculty research rankings for each research methodology commonly used by accounting researchers (analytical, archival, and experimental). These findings will be of interest to potential doctoral students and current faculty, as well as accounting department, business school, and university administrators as they make decisions based on individual faculty …

Reconciling Archival And Experimental Research: Does Internal Audit Contribution Affect The External Audit Fee?, Douglas F. Prawitt, Nathan Y. Sharp, David A. Wood

Faculty Publications

Consistent with guidelines from external auditing standards, a large body of experimental and survey research suggests that an internal audit function (IAF) can contribute in ways that lead to decreased external audit fees; however, research using archival methodologies generally finds either no relation or a positive relation between proxies for IAF contribution and external audit fees. In this paper, we provide new evidence using a unique and previously unavailable data set to develop archival proxies of internal audit contribution. We find that SAS No. 65-based proxies for the contribution of internal audit are associated with lower unexpected external audit fees. …

The Development Of Psychometrically Equivalent Cantonese Speech Audiometry Materials, Shawn L. Nissen, Richard W. Harris, Ron W. Channell, Brooke Conklin, Misty Kim, Lena Wong

Faculty Publications

Objective: The aim of this study was to develop and psychometrically evaluate speech audiometry materials that can be used to measure word recognition (WR) and speech recognition testing (SRT) in quiet for native speakers of Cantonese. Study Sample: Commonly used bisyllabic and trisyllabic Cantonese words were digitally recorded by native male and female talkers and then evaluated by twenty normal-hearing Cantonese listeners. Design: The recorded bisyllabic words were psychometrically evaluated and arranged into four WR lists and eight half-lists that are relatively homogeneous in audibility. Using logistic regression, SRT materials were developed by selecting 28 trisyllabic words with relatively steep …

Portrayals Of Bullying In Childr Als Of Bullying In Children’S Pictur S Picture Books And Implications E Books And Implications For Bibliotherapy, Tina Dyches, Emily Moulton, Melissa Allen Heath, Mary Anne Prater

Faculty Publications

Bullying, a serious issue in today’s schools, negatively impacts children. This article summarizes research and emphasizes the need for effective tools, such as bibliotherapy, to deter bullying. To assist professionals in selecting books for bibliotherapy, 38 bully-themed children’s K-3 picture books ranked 1- 4 by The Horn Book Guide (HBG) from January 1, 2004 through January 1, 2010 were analyzed. Comparisons were made between the selected books’ portrayals of bullying and aspects of bullying, and bully prevention described in research literature. Information was summarized, including the following details: (a) gender of bully and victim, (b) type of bullying, (c) location …

Post-School Data Collection Question Bank, Ryan O. Kellems Ph.D., Charlotte Y. Alverson, Deanne Unruh, Dawn A. Rowe

Faculty Publications

States must collect and report post-school outcomes of youth with disabilities as defined in the SPP/APR Indicator #14, specifically: “Percent of youth who are no longer in secondary school, had IEPs in effect at the time they left school, and were: A. Enrolled in higher education within one year of leaving high school. B. Enrolled in higher education or competitively employed within one year of leaving high school. C. Enrolled in higher education or in some other postsecondary education or training program; or competitively employed or in some other employment within one year of leaving high school.” (20 U.S.C. 1416(a)(3)(B))

Short Interest As A Signal Of Audit Risk, Cory A. Cassell, Michael S. Drake, Stephanie J. Rasmussen

Faculty Publications

Motivated by evidence from the empirical accounting and finance literatures suggesting that short sellers target firms with suspect financial reporting, we investigate whether short interest provides a signal of the degree of audit risk. We find a positive association between audit fees and short interest (total shares sold short scaled by total shares outstanding) after controlling for other determinants of audit fees. This finding suggests that short interest is an indicator of audit risk that reflects information not captured by traditional client risk measures. We also find an increase in the magnitude of the association between audit fees and short …

Analysts’ Accrual-Related Over-Optimism: Do Analyst Characteristics Play A Role?, Michael S. Drake, Linda A. Myers

Faculty Publications

Bradshaw, Richardson, and Sloan (2001) find that analyst forecast over-optimism is greater for firms with high accruals. This “accrual-related over-optimism” is generally interpreted as evidence that analyst forecasts do not fully incorporate predictable earnings reversals associated with high accruals. We investigate whether analyst experience, access to resources (brokerage size), and portfolio complexity moderate the relation between over-optimistic forecasts and high accruals. We demonstrate the robustness of accrual-related over-optimism to controls for cash flow and prior forecast errors. We find that accrual-related over-optimism is lower for analysts with greater general experience and for analysts following fewer firms but find only limited …

A Perspective On The Joint Iasb/Fasb Exposure Draft On Accounting For Leases, Yuri Biondi, Robert Bloomfield, Jonathan C. Glover, Karim Jamal, James A. Ohlson, Stephen H. Penman, Eiko Tsujiyama, T. Jeffrey Wilks

Faculty Publications

The International Accounting Standards Board (IASB) and The Financial Accounting Standards Board (FASB) recently issued a joint exposure draft on accounting for leases. This exposure draft seeks to shift lease accounting from an “ownership” model to a “right-to-use” model. Under the current ownership model, leases can be reported on balance sheet (finance leases) if certain tests are met, or off balance sheet (operating leases) if those tests are not met. The new model seeks to report all leases on the balance sheet based on the present value of lease obligations without any bright line tests, and no sharp on or …

Assessing The Need For The Development Of Standardized Life Skills Measures, Mat D. Duerden, Peter A. Witt

Faculty Publications

Youth practitioners often select life skills as intentionally targeted program outcomes. While research findings suggest the efficacy of program experiences to positively influence a variety of life skills, it remains difficult to compare these findings due to measurement incongruities. Individual life skills (e.g., leadership, decision making, etc.) often lack standardized conceptualizations and measurement approaches. The purpose of the study reported here was to gather data about practitioners' perceptions of those life skill domains most in need of measurement development. Based on the results of the study, 10 life skill sub-domains are recommended for future measurement development efforts.

Positive Youth Development Within A Family Leisure Context: Youth Perspectives Of Family Outcomes, Peter J. Ward, Ramon B. Zabriskie

Faculty Publications

Family leisure involvement may provide the first and most essential context for positive youth development in today's society.

Structured and organized programs and activities provide valuable settings for youth development. However, the primary setting of the home should be considered the fi rst, and perhaps the most essential, context for positive youth development. Within the home environment, the parents are often the most invested adults in the lives of youth. Parental involvement is one of the strongest protective factors an adolescent can have related to maximizing his or her potential. Evidence supports that strong, positive parental infl uence contributes to …

How Does Simplifi Ed Disclosure Affect Individuals’ Mutual Fund Choices?, John Beshears, James J. Choi, David Laibson, Brigitte C. Madrian

Faculty Publications

Some regulators believe that the average investor has a hard time reading the statutory prospectuses mutual funds distribute. In the words of the Securities and Exchange Commission (SEC), “Prospectuses are often long . . . Too frequently, the language of prospectuses is complex and legalistic, and the presentation formats make little use of graphic design techniques that would contribute to readability.”1 Partly as a result, two- thirds of investors do not read the prospectus before purchasing mutual fund shares (Investment Company Institute 2006).

Insurance Theory And Challenges Facing The Development Of Microinsurance Markets, James C. Brau, Craig B. Merrill, Kim B. Staking

Faculty Publications

Microinsurance institutions and instruments have developed rapidly over the last decade, with policies covering tens of millions at the base of the economic pyramid. Ranging from simple policies providing life or health insurance to complex policies covering catastrophic risks for small landholders, it is a market with proven potential that demands closer attention. This paper provides a review of the nascent academic literature and then suggests some critical elements of insurance theory that may help us understand the challenges facing microinsurance markets and how these markets can better serve the needs of their customers. Although the basic theory is well …

Portfolio Rebalancing In General Equilibrium, Miles S. Kimball, Matthew D. Shapiro, Tyler Shumway, Jing Zhang

Faculty Publications

Standard portfolio advice is that agents should hold a constant share of risky assets. All agents cannot, however, follow this advice because supply and demand of risky assets must be equal. To study equilibrium rebalancing, the paper develops an overlapping generations model in which agents differ both in age and risk tolerance. Equilibrium rebalancing is driven by a leverage effect that affects levered and unlevered agents in opposite directions, an aggregate risk tolerance effect which depends on the distribution of wealth, and an intertemporal hedging effect. Optimal equilibrium portfolio rebalancing departs significantly from the standard advice.

Web 2.0: A Definition, Literature Review, And Directions For Future Research, David W. Wilson, Xiaolin Lin, Phil Longstreet, Saonee Sarker

Faculty Publications

The Web 2.0 paradigm has gained substantial momentum in the last decade. The influence of Web 2.0 principles and technologies has fueled an explosion of information and media content on the Web, and individual and corporate adoption of the technologies continues to rise. As the popularity and usefulness of these technologies continue to unfold, there has yet been no concise definition of the term Web 2.0, nor a clear understanding of its scope. We synthesize and analyze the extant academic and practitioner-oriented literature on the topic to 1) provide a clear, concise definition of the term Web 2.0, 2) categorize …

Digital Technology And The Variation In Design Routines: A Sequence Analysis Of Four Design Processes, James Gaskin, B. Veeresh Thummadi, Kalle Lyytinen, Youngjin Yoo

Faculty Publications

We advance a theory of design process variation across organizational types and the effects of digitalization on these processes. We argue that design routines are subject to greater variation within and between organizations as organizations embed increasingly rich repertoires of digital capabilities in their design activities. Using a sequence analysis method we compare design process variation in four organizations to examine how design routines vary due to differences in embedded digital capabilities and organization of the design process. Our analysis reveals new insights on the effects organizational context and digitalization have on design routine composition.

Video Game Design In The Mba Curriculum: An Experiential Learning Approach For Teaching Design Thinking, James Gaskin, Nicholas Berente

Faculty Publications

In the spirit of design thinking, we have developed a ―hands-on‖ video game design workshop intended to be used for an MBA course on design thinking. This novel approach to teaching complex concepts and skills to business students has been received with enthusiasm, and it provides a unique and memorable experience for students to draw on as they encounter situations in which they will apply design thinking in the future. Additionally, student-produced games and student reflections on the workshops provide initial evidence of the value of teaching design thinking through this type of experiential method. In this article we review …

Re-Envisioning Reading And Writing Through Combined-Text Picture Books, Deborah Dean, Sirpa Grierson

Faculty Publications

Combined-text picture books unite multiple genres, providing nuanced information on a single topic from the unique lens of each genre. By providing guided practice in reading and writing a combined-text picture book, teachers can help students develop sensitivity to different types of texts, to what they do and how they do it. Such sensitivity can give students a foundation for selecting appropriate strategies for reading and writing effectively in a wider variety of genres. This article describes the process of explicit instruction, discussion, and guided practice with one such text, One Leaf Rides the Wind, that helped one class …

Shifting Perspectives On Grammar: Changing What And How We Teach, Deborah Dean

Faculty Publications

What is it about teaching language that makes it so problematic? Is it because language is connected to who and what we are and everything we do? That has to be part of it. I know that I’ve been through my share of discussions about language and how to teach it, with those involved holding a variety of perspectives. I’ve watched those discussions shift over the years of my teaching as something new comes up and perspectives shift again. Today, when I read articles or hear discussions about teaching grammar, I find interesting dichotomies in perspectives. Some people see language …

Journal Of Career Development: A 36-Year Content Analysis (1972-2007), Kawika Allen, Adipat Chaichanasakul, Yuhong He, Hsui-Hui Chen, Taleb S. Khairallah, Karina Ramos

Faculty Publications

The purpose of this study was to perform a comprehensive analysis of 830 articles published in the Journal of Career Development (JCD) between 1972 and 2007 and provide a chronicle of the publication trends since the journal’s establishment. The analysis focused on six main areas (e.g., authors and institutions, type of article, major constructs/variables, career theories, type of methodologies, and sample characteristics). The results revealed that JCD published articles with a wide range of topics consistent with its mission statement. Recommendations for future publication agenda are presented.